This Day in History
Today: September 12, 2026
-490
Battle of Marathon: The conventionally accepted date for the Battle of Marathon. The Athenians and their Plataean allies defeat the first Persian invasion force of Greece.[1]
372
Sixteen Kingdoms: Jin Xiaowudi, age 10, succeeds his father Jin Jianwendi as Emperor of the Eastern Jin dynasty.
1213
Albigensian Crusade: Simon de Montfort, 5th Earl of Leicester, defeats Peter II of Aragon at the Battle of Muret.
1229
Battle of Portopí: The Aragonese army under the command of James I of Aragon disembarks at Santa Ponça, Majorca, with the purpose of conquering the island.
1309
The First Siege of Gibraltar takes place in the context of the Spanish Reconquista pitting the forces of the Kingdom of Castile against the Emirate of Granada resulting in a Castilian victory.
1609
Henry Hudson begins his exploration of the Hudson River while aboard the Halve Maen.
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